Coated steel plate has good corrosion resistance. The coated steel plate is made by coating a layer of anti-corrosion film on the surface of the steel plate. This layer of film can prevent the erosion of moisture, oxygen and other chemicals, and can prolong the service life of the steel plate. Coated steel sheets are commonly used in areas such as construction, automobile manufacturing, shipbuilding and industrial equipment to provide a durable and corrosion-resistant material. At the same time, different film materials and coating technologies can be used to meet the needs of different environments and applications.